INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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What point is about halfway between the alveolar crest and root apex?

Center of rotation
Center of resistance
Fulcrum point
Equilibrium point

The correct answer is: Center of resistance

The correct answer is the center of resistance. In dental biomechanics, the center of resistance is a crucial concept in understanding the distribution of forces acting on a tooth. It is a point located approximately halfway between the alveolar crest and the root apex of a tooth. The center of resistance is significant in orthodontics and prosthodontics as it is the point where the most amount of force should be applied to a tooth to achieve the desired movement without causing harmful effects on the surrounding structures. Understanding the exact location of the center of resistance helps in devising treatment plans that are effective and safe for the patient. In contrast, the other options are not related to the specific point in question: - The center of rotation is about the longitudinal axis of a tooth - The fulcrum point is related to the point of support or axis of rotation for a lever - The equilibrium point is where the net forces on an object add up to zero.